The La Crosse Technology® Wireless Professional Weather Station With USB Transceiver is a high-level way to monitor indoor and backyard temperature and humidity. The dark gray station with black frame can be used with or without a computer and features wind, rain and barometric pressure readings, weather alarms and storm warnings. Plus, you can interact with your daily weather data on your PC or you can monitor your home and backyard weather conditions you're your smartphone, tablet or computer. You can even set custom wireless text and email alerts! Ranges: indoor temperature with min/max time and date 41°F to 104°F, outdoor temperature with min/max time and date -40°F to 139.8°F, indoor/outdoor relative humidity with min/max time and date 3% to 99% RH. Two C batteries required, included.

 Wireless Weather Station works with or without a computer  12/24 hour time and calendar with date, month and year Manual time (without PC computer) or automatic time/date when using USB transceiver to sync to PC time/date Forecast icons with tendency based on barometric pressure: sunny, partly cloudy and stormy Dew point, wind chill, wind speed and wind gust with min/max time and date Relative air pressure with 24 hour / 72 hour history graph Weather alarms for temperature, humidity, wind gust/ direction, pressure, rain and storm warning  Wind direction with compass Rainfall for last hour, 24 hour, week, month and total LCD contrast setting for easy viewing